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• blood transfusion
  blood transfusion

  noun

  the injection of blood from one person or animal into the bloodstream of another.
• transfusion, blood
  transfusion, blood

  The injection of blood received from a donor into the bloodstream of another individual having a compatible blood type. A person may need a blood transfusion if a great deal of blood has been lost through surgery or trauma.

blood transfusion

American  

noun

1. the injection of blood from one person or animal into the bloodstream of another.

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transfusion, blood Cultural  

1. The injection of blood received from a donor into the bloodstream of another individual having a compatible blood type. A person may need a blood transfusion if a great deal of blood has been lost through surgery or trauma.

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If the blood supply is contaminated, diseases such as hepatitis and AIDS can be passed to someone who receives a blood transfusion.

Etymology

Origin of blood transfusion

First recorded in 1875–80

Example Sentences

Medical staff took blood tests and he was admitted for a blood transfusion to address low haemoglobin levels, as well as investigations into his heart murmur.

From BBC • May 5, 2026

At one point since the crash, Vonn said, she received a blood transfusion to raise her hemoglobin levels.

From Los Angeles Times • Feb. 23, 2026

“I got my blood transfusion when I married my wife.”

From Los Angeles Times • Dec. 18, 2025

The network desperately needed something fresh – not just a facelift, but a full blood transfusion.

From Salon • Aug. 2, 2025

As he was dying, word spread throughout Hayti that he needed a blood transfusion.

From "The Best of Enemies" by Osha Gray Davidson